LEADVILLE, Colo.—Search and rescue crews are looking for two skiers who are missing following a large avalanche near Leadville.

The Lake County Office of Emergency Management says seven skiers on Star Mountain near Independence Pass triggered the slide at about 5 p.m. Saturday. Three were hospitalized with injuries that included a broken leg, a broken ankle and a possible broken rib and collapsed lung.

Authorities have not released the names of any of the skiers involved.

The Colorado Avalanche Information Center had been warning of dangerous conditions across much of Colorado's mountains after two weeks of heavy snow in the high country.

One-day event to run slide down University HillIt's not quite the alternative mode of transportation that Boulder's used to, but, for one day this summer, residents will be able to traverse several city blocks atop inflatable tubes.